About

Biofertiliser, from digestate and sludge

BioJejak follows digestate and dewatered sludge from the mill and the biogas plant through composting, drying, and pelletising into bagged biofertiliser, and the liquid fraction onto a tanker. The bags and the liquid go back onto oil palm, rice, vegetables, and the nursery. The purpose is a fertiliser whose source batch, nutrient test, and end use stay on the same record as the waste it was made from.

See the technology note on biofertiliser, and the briefing on what advanced sludge systems can deliver.